Petrochemical, refining and commercial are among the Wholesale Electric Supplies. The company provides electrical supplies and related services to clients in the industrial and commercial markets worldwide, including the chemical, original equipment manufacturer and utility markets. In addition to a variety of electrical products, the company offers services that include commercial project management, information technology, utilities, voice and data, construction material management, original equipment manufacturing, modification and automation. Wholesale Electric Supply s products and work can be seen in numerous buildings in Houston, the Astrodome, the Houston Medical Center and chemical, petrochemical and refining complexes along the Gulf Coast and in Mexico, Singapore, Yemen and Saudi Arabia. The company was founded in 1949 and is headquartered in Houston.